socialde.pt
Laravel AT Protocol Client (alpha & unstable)
1<?php
2
3namespace SocialDept\AtpClient\Data;
4
5use phpseclib3\Crypt\Common\PrivateKey;
6use phpseclib3\Crypt\Common\PublicKey;
7use phpseclib3\Crypt\PublicKeyLoader;
8
9class DPoPKey
10{
11 protected string $privateKeyPem;
12
13 protected string $publicKeyPem;
14
15 public function __construct(
16 PrivateKey|string $privateKey,
17 PublicKey|string $publicKey,
18 public readonly string $keyId,
19 ) {
20 // Store as PEM strings for serialization
21 $this->privateKeyPem = $privateKey instanceof PrivateKey
22 ? $privateKey->toString('PKCS8')
23 : $privateKey;
24
25 $this->publicKeyPem = $publicKey instanceof PublicKey
26 ? $publicKey->toString('PKCS8')
27 : $publicKey;
28 }
29
30 public function getPrivateKey(): PrivateKey
31 {
32 return PublicKeyLoader::load($this->privateKeyPem);
33 }
34
35 public function getPublicKey(): PublicKey
36 {
37 return PublicKeyLoader::load($this->publicKeyPem);
38 }
39
40 public function getPublicJwk(): array
41 {
42 $jwks = json_decode($this->getPublicKey()->toString('JWK'), true);
43
44 // phpseclib returns JWKS format {"keys":[...]}, extract the first key
45 $jwk = $jwks['keys'][0] ?? $jwks;
46
47 return array_merge(
48 $jwk,
49 [
50 'alg' => 'ES256',
51 'use' => 'sig',
52 'kid' => $this->keyId,
53 ]
54 );
55 }
56
57 public function getPrivateJwk(): array
58 {
59 $jwks = json_decode($this->getPrivateKey()->toString('JWK'), true);
60
61 // phpseclib returns JWKS format {"keys":[...]}, extract the first key
62 $jwk = $jwks['keys'][0] ?? $jwks;
63
64 return array_merge(
65 $jwk,
66 [
67 'alg' => 'ES256',
68 'use' => 'sig',
69 'kid' => $this->keyId,
70 ]
71 );
72 }
73
74 public function toPEM(): string
75 {
76 return $this->privateKeyPem;
77 }
78}